Febreze Odor Eliminating Vacuum Bags, Kenmore C 5055 & 50558, 3 bags, 2 Pack (6 Total Bags) Premium allergen filtration helps reduce household allergens such as tree, grass & ragweed pollen The foam filters are washable clean by hand washing in warm water. A mild detergent may be used if desired. Allow the filter to air dry completely before replacing Eliminates odors and freshens as you vacuum! To maximize performance and extend the life of your vacuum, filters should be cleaned and replaced regularly. Clean filters after every few vacuum uses and replace every 6-8 months, or more often if you have a lot of pet hair or messes in your home.